I have a Window 7computer and I have a lot of pictures that I am using for a project. All of a sudden my pictures have inherited the letter B followed by 000 and a 4 or 5 number ie B0008877. I can't figure out the number so I don't know what picture it would be assigned to. I have so many of these numbers in my pictures that it would take a long time to find a picture I am looking for. I have checked on google, dell, and even my Seagate, I have even contacted Epson (printer). Any help would be appreciated. Some of the numbers do correspond with my pictures, but there are many more that don't. Any help would be appreciated. Thank you.